Improvement in connections for lead-pipe joints



mailed ,Stabat ISAAC SMITH, or NEW YORK, N. Y.

Laim Putative. 102,443, mail apra 2c, 1ero.

IMPRQVEMENT IN' CQNNECTIONS FR LEAD-IPE JOINTS.

The Schedule referred to Ln these Letters Patent'and making part of the same.

w'f-u l To all who-m it may concer-a:

Be it vknown that I, ISAAC SMITH, of the city, county, .and State of New York, have'invented a new and useful yImprovement in Pipe-Joints,'of which the following is a full, clear, and exact description, reference being had to the accompanying drawing forming part of this specification, and in which-.-

Figure l represents a side or longitudinal Vview of a npipeconnecti0n as used in making a straight or singlepipe-joint, in accordance with my improvement;

Figure 2, a similar view of a pipe-connection for es\ tablishing a joint of T-form; and

Figures 3V and 4, sectionalI views ofthe jointsy as made by said connections and the pipes theyserve to unite.

Similar letters ,of reference indicate corresponding parts.

This'invention is designed to-be applied to making joints in lead and other soft Vmetal pipes, and will be found specially advantageous'n uniting lead-incased tin pipes.` Such soft-metal pipes are usually joined by what are termed wipe-joints, which not only `A`have a clumsy, heavy appearance, but,' in the' case ot' leadincased tin pipes, are very imperfectas regards establishing a continuity ofthe tin, and, moreover, require very skillful workmanship to' make..

My invention reufovcs all these objections, tand efl'ects a much more perfectand neater joint, which may be made hya workman of comparatively but little skill in such matters. Said invention is based-upon soldering the jointon the inside by heat applied to.. thel outside thereof; and to thisend,

It consists in .a thirnble-like connection `of hard metal, made with a heat-retainingr band or projection, which connection, that is, preferably, of tapering character as regards its thimble-like portion or portions, is -dipped in molten tin or solder, and, thus coated, inser-ted within the end or ends of the soft metalypipes to be joined, or the end orcnds ot' the latter' spread and drawn or forced over -the thimble or'thiiubles of the connection, so that, on applying beat to the ontside ofthe joiut,"tl1e saine is eli'eetuaily closed by bcing soldered on the inside. A Y

While the invention is applicable to a variety of differently-arranged joints or brauch attachments to pipes, including the4 fastening on .of faucet-s, and to soft metal pipes of various kinds, including plain lead pipes, it will su'tiice here to show itundcr two forms of construction only, and as applied to lead-incascd tin pipes.

, Reierring, in the first instance, to figs. 1 and .31ct' the accompanying drawing- A represents a brass or other hard instal pipe-connection of tubular character, and formed of revcrselytapering' thimbles a u., meeting at their/larger ends ur athick band or body portion, b. This band performs severalfunctions: thus, it serves-or may serve as a hold for pincers or tongs, whereby to dip the connection in molten tin or solder; also, as a shoulder for the ends of the pipe to butt against; but its main use is toretainlieat to eil'ect the soldering ot' the joint ou 'theiuside by heat applied to its exterior, and toprotect the soft metal pipes from contact with the heat ing tool. Said connection A being dipped, as dedscribed, in molten tin or solder, has its thimbles a a entered within the ends of the lead-incased tin pipes B B, which it is .reqniredto connect, till the said pipes butt up against the band b as a shoulder, the ends of thc pipes being previously slightly spread;-or"behigt opened or spread by the tapering construction of thei thimbles, as said pipes are forcibly fitted over them.

Heat, by-ruea'ns of a pair of hot tongs o r otherwise,4

is then applied to the outside of the jointthrough the bandb, which serves to retain heat to a sniicent degree, and, by the conducting power of the thimbles a c, to insure the soldering of 'said thiinbles with the interior surfaces'of the-pipes B B.

In figs. 2 and 4 ofthe drawing, the invention is shown as applied to a T-joint, the hard-metal connection A beingformed with tin-ee thimbles, a afa, and two bands, b b, the one of which is of considerable length or width, to provide for a proper hold oi' the h ot tongs to heat up or warm both bands; but. the

reversed thixnbles, withan interposed band or body portion.

.Where the joint ils wnatmay be termed a single one, as, for' instance, in 'attaching a cock to the end of a pipe, a single -thimble-like commotion suffices, and in such. as in other joints, any suitable vinterposed or projecting body portion may be substituted for the heat-retaining baud. What is here claimed, and Letters Patent, is'

A connecting socket, .having two or more tapering ends, u, and swell b between thln, said swell extend ing beyond the periphery oi thepipes to be connected, for tlicapplication ol' heat in the manner set forth.

IlSAAC 'SMITH desired to be secured by Witnesses FRED. HAYNps, HENRY PALMER.

joint of the three pipes, B B B, is established' in pre- 

